RUI: Phylogeny and Diversification of Hydrangeaceae

RUI：绣球科的系统发育和多样性

• 批准号: 9220761
• 负责人: Larry Hufford
• 金额: $ 15万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-06-01 至 1996-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9220761&HistoricalAwards=false
• 关键词: RUI; Phylogeny; Diversification; Hydrangeaceae

Investigations that coordinate phylogenetic analyses with explorations of the evolutionary processes are essential for understanding organismal diversity. The proposed research, centered on the hydrangea family of plants, aims to resolve phylogenetic relationships among major groups of flowering plants. This will be accomplished by focusing on key taxa in conjunction with groups that are poorly known and considered "anomalous" in the subclass Rosidae, many of which are Asian in origin and poorly known in collections. Hydrangeaceae are positioned near the divergence of the subclass Asteridae, and this investigation will increase our understanding of evolutionary diversification preceding the origin of subclass Asteridae with its great floral conservation. The proposed investigation has three facets: 1. phylogenetic analysis using anatomical and morphological features of plants of the hydrangea and dogwood groups positioned taxonomically among Rosidae and near the origin of Asteridae; 2. phylogenetic analysis within the Hydrangeaceae family to distinguish natural groups of species and genera and to explore patterns of flower and fruit evolution in the family; and 3. ontogenetic or developmental studies to determine roles of various cellular processes in the evolution of different floral and fruit forms. An explicit phylogenetic framework will help guide the choice of critical taxa in making comparisons for the study of different developmental processes that create flower and fruit diversity.

将系统发育分析与 探索进化过程对于 了解生物多样性。 拟议的研究， 以绣球科植物为中心，旨在解决 开花植物主要类群之间的系统发育关系。 这将通过集中在关键类群结合 与那些鲜为人知，被认为是“异常”的群体， 蔷薇亚纲，其中许多起源于亚洲， 在收藏中认识。 绣球科植物位于 分歧的亚类Asteridae，这项调查将 增加我们对进化多样化的理解 早于海星亚纲的起源， 节约 拟议的调查有三个方面：1。系统发育 利用植物的解剖学和形态学特征分析 绣球花和山茱萸组在分类学上位于 蔷薇科和阿斯特科起源附近; 2.系统发育分析 在绣球科，以区分自然群体的 物种和属，并探索花和果的模式 家庭的发展; 3。个体发育的 研究以确定各种细胞过程在 不同的花和果实形式的进化。 显式 系统发育框架将有助于指导关键类群的选择 在对不同发育阶段的研究进行比较时， 创造花朵和果实多样性的过程。